// Reads TSV line by line and extracts fields
Rows SheetReader::ParseTSV(std::string fname)
{
Rows rows;
std::ifstream file(fname);
std::string line;
std::string tab = "\t";
while (std::getline(file, line))
{
rows.push_back(Rows::value_type());
int tab_pos = -1;
int last_tab_pos = -1;
do
{
last_tab_pos = tab_pos + 1;
tab_pos = line.find(tab, tab_pos + 1);
std::size_t start = last_tab_pos;
std::size_t count = tab_pos - last_tab_pos;
std::string field = line.substr(start, count);
rows.back().push_back(field);
}
while (tab_pos != std::string::npos);
}
return std::move(rows);
}
void
DLargestCommonSubSequence::distributedInit() {
// allocate storage for rows before
int rowsToExportPerProc = (0 == chunkStride_%n_) ? chunkStride_/n_ :
chunkStride_/n_+1;
//std::cout << "rowsToExportPerProc "
// << rowsToExportPerProc << std::endl;
for(int i = 0; i < rowsToExportPerProc; ++i) {
Row curr;
curr.resize(chunkLength_);
over_.push_back(curr);
bsp_push_reg(over_.back().data(), sizeof(int)*chunkLength_);
//std::cout << "Proc " << id_ <<
// " Last Row index " << i << " addr: ";
// std::cout << over_.back().data()
// << std::endl << std::flush;
}
for(int i = 0; i < chunkStride_; ++i) {
for(int j = 0; j < chunkStride_; ++j) {
if(id_ != i % n_)
continue;
// allocate L
L_[getCPair(i,j)] = new int*[chunkLength_];
for(int k = 0; k < chunkLength_; ++k) {
L_[getCPair(i,j)][k] = new int [chunkLength_];
memset(L_[getCPair(i,j)][k], 0, chunkLength_*sizeof(int));
}
//allocate chunks for lastRow
if(i > 0) {
L_[getCPair(i-1,j)] = new int*[chunkLength_];
for(int k = 0; k < chunkLength_; ++k) {
if(k < chunkLength_-1) {
L_[getCPair(i-1,j)][k] = NULL;
} else {
L_[getCPair(i-1,j)][k] = new int[chunkLength_];
memset(L_[getCPair(i-1,j)][k],
0, chunkLength_*sizeof(int));
}
}
}
}
}
}